----------------------------------------------------------------------------
--	Ranked Matchmaking AI v1.3 New Structure
--	Author: adamqqq		Email:adamqqq@163.com
----------------------------------------------------------------------------
--------------------------------------
-- General Initialization
--------------------------------------
local utility = require(GetScriptDirectory() .. "/utility")
local ability_item_usage_generic = require(GetScriptDirectory() .. "/ability_item_usage_generic")
local AbilityExtensions = require(GetScriptDirectory() .. "/util/AbilityAbstraction")
local A = require(GetScriptDirectory() .. "/util/MiraDota")

local debugmode = false
local npcBot = GetBot()
if npcBot == nil or npcBot:IsIllusion() then
	return
end

local Talents = {}
local Abilities = {}
local AbilitiesReal = {}

ability_item_usage_generic.InitAbility(Abilities, AbilitiesReal, Talents)

local AbilityToLevelUp =
{
	Abilities[1],
	Abilities[3],
	Abilities[2],
	Abilities[1],
	Abilities[1],
	Abilities[4],
	Abilities[1],
	Abilities[3],
	Abilities[3],
	"talent",
	Abilities[3],
	Abilities[4],
	Abilities[2],
	Abilities[2],
	"talent",
	Abilities[2],
	"nil",
	Abilities[4],
	"nil",
	"talent",
	"nil",
	"nil",
	"nil",
	"nil",
	"talent",
}
local TalentTree = {
	function()
		return Talents[1]
	end,
	function()
		return Talents[4]
	end,
	function()
		return Talents[5]
	end,
	function()
		return Talents[8]
	end
}

-- check skill build vs current level
utility.CheckAbilityBuild(AbilityToLevelUp)

function BuybackUsageThink()
	ability_item_usage_generic.BuybackUsageThink();
end

function CourierUsageThink()
	ability_item_usage_generic.CourierUsageThink();
end

function AbilityLevelUpThink()
	ability_item_usage_generic.AbilityLevelUpThink2(AbilityToLevelUp, TalentTree)
end

--------------------------------------
-- Ability Usage Thinking
--------------------------------------
local cast = {}
cast.Desire = {}
cast.Target = {}
cast.Type = {}
local Consider = {}
local CanCast = { utility.NCanCast, function(t)
	return AbilityExtensions:AllyCanCast(t, false) and not t:HasModifier "modifier_ice_blast"
end, utility.NCanCast, function(t)
	return utility.UCanCast(t) and A.Unit.IsNotCreepHero(t) and not AbilityExtensions:ShouldNotBeAttacked(t)
end }
local enemyDisabled = utility.enemyDisabled

function GetComboDamage()
	return ability_item_usage_generic.GetComboDamage(AbilitiesReal)
end

function GetComboMana()
	return ability_item_usage_generic.GetComboMana(AbilitiesReal)
end

Consider[1] = function()

	local abilityNumber = 1
	--------------------------------------
	-- Generic Variable Setting
	--------------------------------------
	local ability = AbilitiesReal[abilityNumber];

	if not ability:IsFullyCastable() then
		return BOT_ACTION_DESIRE_NONE, 0;
	end

	local CastRange = ability:GetCastRange();
	local Damage = ability:GetLevel() * 75
	local Radius = ability:GetAOERadius()


	local allys = npcBot:GetNearbyHeroes(1200, false, BOT_MODE_NONE);
	local enemys = npcBot:GetNearbyHeroes(CastRange + 150, true, BOT_MODE_NONE)
	local WeakestEnemy, HeroHealth = utility.GetWeakestUnit(enemys)
	local creeps = npcBot:GetNearbyCreeps(CastRange + 150, true)
	local WeakestCreep, CreepHealth = utility.GetWeakestUnit(creeps)

	--------------------------------------
	-- Global high-priorty usage
	--------------------------------------
	--try to kill enemy hero
	if (npcBot:GetActiveMode() ~= BOT_MODE_RETREAT)
	then
		if (WeakestEnemy ~= nil)
		then
			if (CanCast[abilityNumber](WeakestEnemy))
			then
				if (
					HeroHealth <= WeakestEnemy:GetActualIncomingDamage(Damage, DAMAGE_TYPE_MAGICAL) or
						(
						HeroHealth <= WeakestEnemy:GetActualIncomingDamage(GetComboDamage(), DAMAGE_TYPE_MAGICAL) and
							npcBot:GetMana() > ComboMana))
				then
					return BOT_ACTION_DESIRE_HIGH, utility.GetUnitsTowardsLocation(WeakestEnemy, npcBot, Radius / 2);
				end
			end
		end
	end
	--------------------------------------
	-- Mode based usage
	--------------------------------------
	-- If we're seriously retreating, see if we can land a stun on someone who's damaged us recently
	if (npcBot:GetActiveMode() == BOT_MODE_RETREAT and npcBot:GetActiveModeDesire() >= BOT_MODE_DESIRE_HIGH)
	then
		for _, npcEnemy in pairs(enemys) do
			if (npcBot:WasRecentlyDamagedByHero(npcEnemy, 2.0))
			then
				if (CanCast[abilityNumber](npcEnemy))
				then
					return BOT_ACTION_DESIRE_MODERATE - 0.05, utility.GetUnitsTowardsLocation(npcEnemy, npcBot, Radius / 2);
				end
			end
		end
	end

	if (npcBot:GetActiveMode() == BOT_MODE_ATTACK)
	then
		if (ManaPercentage > 0.4 or npcBot:GetMana() > ComboMana)
		then
			local locationAoE = npcBot:FindAoELocation(true, false, npcBot:GetLocation(), CastRange, Radius, 0, 0);
			if (locationAoE.count >= 2)
			then
				return BOT_ACTION_DESIRE_MODERATE - 0.04, locationAoE.targetloc;
			end
		end
	end

	-- If we're pushing or defending a lane and can hit 4+ creeps, go for it
	if (npcBot:GetActiveMode() == BOT_MODE_PUSH_TOWER_TOP or
		npcBot:GetActiveMode() == BOT_MODE_PUSH_TOWER_MID or
		npcBot:GetActiveMode() == BOT_MODE_PUSH_TOWER_BOT or
		npcBot:GetActiveMode() == BOT_MODE_DEFEND_TOWER_TOP or
		npcBot:GetActiveMode() == BOT_MODE_DEFEND_TOWER_MID or
		npcBot:GetActiveMode() == BOT_MODE_DEFEND_TOWER_BOT)
	then
		if (ManaPercentage > 0.4 or npcBot:GetMana() > ComboMana)
		then
			local locationAoE = npcBot:FindAoELocation(true, false, npcBot:GetLocation(), CastRange, Radius, 0, 0);
			if (locationAoE.count >= 4)
			then
				return BOT_ACTION_DESIRE_MODERATE - 0.03, locationAoE.targetloc;
			end
		end
	end

	-- If we're going after someone
	if (npcBot:GetActiveMode() == BOT_MODE_ROAM or
		npcBot:GetActiveMode() == BOT_MODE_TEAM_ROAM or
		npcBot:GetActiveMode() == BOT_MODE_DEFEND_ALLY or
		npcBot:GetActiveMode() == BOT_MODE_ATTACK)
	then
		local npcEnemy = npcBot:GetTarget();

		if (npcEnemy ~= nil)
		then
			if (CanCast[abilityNumber](npcEnemy))
			then
				return BOT_ACTION_DESIRE_MODERATE - 0.02, utility.GetUnitsTowardsLocation(npcEnemy, npcBot, Radius / 2);
			end
		end
	end

	-- If we're farming and can kill 3+ creeps with LSA
	if (npcBot:GetActiveMode() == BOT_MODE_FARM) then
		if (ManaPercentage > 0.4 or npcBot:GetMana() > ComboMana)
		then
			local locationAoE = npcBot:FindAoELocation(true, false, npcBot:GetLocation(), CastRange, Radius, 0, 0);
			if (locationAoE.count >= 3) then
				return BOT_ACTION_DESIRE_LOW, locationAoE.targetloc;
			end
		end
	end

	return BOT_ACTION_DESIRE_NONE, 0;

end


Consider[2] = function()
	local abilityNumber = 2
	--------------------------------------
	-- Generic Variable Setting
	--------------------------------------
	local ability = AbilitiesReal[abilityNumber];

	if not ability:IsFullyCastable() then
		return BOT_ACTION_DESIRE_NONE, 0;
	end

	local CastRange = ability:GetCastRange();


	local allys = npcBot:GetNearbyHeroes(CastRange + 300, false, BOT_MODE_NONE);
	allys = AbilityExtensions:Filter(npcBot, function(t) return not t:HasModifier("modifier_ice_blast") end)
	local WeakestAlly, AllyHealth = utility.GetWeakestUnit(allys)
	local enemys = npcBot:GetNearbyHeroes(CastRange + 300, true, BOT_MODE_NONE)
	local WeakestEnemy, HeroHealth = utility.GetWeakestUnit(enemys)
	local creeps = npcBot:GetNearbyCreeps(CastRange + 300, true)
	local WeakestCreep, CreepHealth = utility.GetWeakestUnit(creeps)
	--------------------------------------
	-- Global high-priorty usage
	--------------------------------------
	--protect teammate,save allys from control
	for _, npcTarget in pairs(allys) do
		if (enemyDisabled(npcTarget))
		then
			if (CanCast[abilityNumber](npcTarget))
			then
				return BOT_ACTION_DESIRE_HIGH, npcTarget
			end
		end
	end

	if (npcBot:GetActiveMode() == BOT_MODE_ATTACK or
		npcBot:GetActiveMode() == BOT_MODE_DEFEND_ALLY or
		ManaPercentage > 0.4)
	then
		for _, npcTarget in pairs(allys) do
			if (npcTarget:GetCurrentMovementSpeed() < 250 or npcTarget:IsSilenced() or npcTarget:IsMuted() or
				npcTarget:IsNightmared() or npcTarget:IsDisarmed() or npcTarget:IsBlind() or npcTarget:IsBlockDisabled())
			then
				if (CanCast[abilityNumber](npcTarget))
				then
					return BOT_ACTION_DESIRE_HIGH, npcTarget
				end
			end
		end
	end

	--Protect myself
	if (
		(npcBot:GetActiveMode() == BOT_MODE_RETREAT and npcBot:WasRecentlyDamagedByAnyHero(2)) or
			HealthPercentage <= 0.4 + #enemys * 0.05 + 0.2 * ManaPercentage)
	then
		if (#enemys >= 1) and not npcBot:HasModifier("modifier_ice_blast")
		then
			return BOT_ACTION_DESIRE_HIGH, npcBot;
		end
	end

	--------------------------------------
	-- Mode based usage
	--------------------------------------
	--teamfightUsing
	if (npcBot:GetActiveMode() == BOT_MODE_ATTACK or
		npcBot:GetActiveMode() == BOT_MODE_DEFEND_ALLY)
	then
		for _, npcTarget in pairs(allys) do
			if (
				npcTarget:GetHealth() / npcTarget:GetMaxHealth() < (0.2 + #enemys * 0.05 + 0.2 * ManaPercentage) and
					npcTarget:WasRecentlyDamagedByAnyHero(2.0))
			then
				if (CanCast[abilityNumber](npcTarget))
				then
					return BOT_ACTION_DESIRE_MODERATE, npcTarget
				end
			end
		end
	end

	-- If we're pushing or defending a lane
	if (npcBot:GetActiveMode() == BOT_MODE_PUSH_TOWER_TOP or
		npcBot:GetActiveMode() == BOT_MODE_PUSH_TOWER_MID or
		npcBot:GetActiveMode() == BOT_MODE_PUSH_TOWER_BOT)
	then
		local t = npcBot:GetAttackTarget()
		if (t ~= nil)
		then
			if (ManaPercentage > 0.4 and t:IsTower())
			then
				return BOT_ACTION_DESIRE_MODERATE, npcBot
			end
		end
	end

	-- If we're going after someone
	if (npcBot:GetActiveMode() == BOT_MODE_ROAM or
		npcBot:GetActiveMode() == BOT_MODE_TEAM_ROAM or
		npcBot:GetActiveMode() == BOT_MODE_DEFEND_ALLY or
		npcBot:GetActiveMode() == BOT_MODE_ATTACK)
	then
		local npcEnemy = npcBot:GetTarget();

		if (ManaPercentage > 0.4)
		then
			if (npcEnemy ~= nil)
			then
				if (CanCast[abilityNumber](npcBot))
				then
					return BOT_ACTION_DESIRE_MODERATE, npcBot;
				end
			end
		end
	end

	-- If we're farming
	if (npcBot:GetActiveMode() == BOT_MODE_FARM)
	then
		if (#creeps >= 2)
		then
			if (ManaPercentage > 0.4)
			then
				return BOT_ACTION_DESIRE_LOW, npcBot;
			end
		end
	end

	return BOT_ACTION_DESIRE_NONE, 0;

end

Consider[4] = function()

	local abilityNumber = 4
	--------------------------------------
	-- Generic Variable Setting
	--------------------------------------
	local ability = AbilitiesReal[abilityNumber];

	if not ability:IsFullyCastable() then
		return BOT_ACTION_DESIRE_NONE, 0;
	end

	local CastRange = ability:GetCastRange();


	local allys = npcBot:GetNearbyHeroes(CastRange + 300, false, BOT_MODE_NONE);
	local WeakestAlly, AllyHealth = utility.GetWeakestUnit(allys)
	local enemys = npcBot:GetNearbyHeroes(CastRange + 300, true, BOT_MODE_NONE)
	local WeakestEnemy, HeroHealth = utility.GetWeakestUnit(enemys)
	local creeps = npcBot:GetNearbyCreeps(CastRange + 300, true)
	local WeakestCreep, CreepHealth = utility.GetWeakestUnit(creeps)
	--------------------------------------
	-- Global high-priorty usage
	--------------------------------------

	if AbilityExtensions:IsPhysicalOutputDisabled(npcBot) then
		return 0
	end

	--try to kill enemy hero
	if (npcBot:GetActiveMode() ~= BOT_MODE_RETREAT)
	then
		if (WeakestEnemy ~= nil)
		then
			if (CanCast[abilityNumber](WeakestEnemy))
			then
				if (HeroHealth <= WeakestEnemy:GetActualIncomingDamage(GetComboDamage(), DAMAGE_TYPE_ALL) and #allys >= #enemys)
				then
					return BOT_ACTION_DESIRE_HIGH, WeakestEnemy;
				end
			end
		end
	end

	--------------------------------------
	-- Mode based usage
	--------------------------------------
	-- If we're going after someone
	if (npcBot:GetActiveMode() == BOT_MODE_ROAM or
		npcBot:GetActiveMode() == BOT_MODE_TEAM_ROAM or
		npcBot:GetActiveMode() == BOT_MODE_DEFEND_ALLY or
		npcBot:GetActiveMode() == BOT_MODE_ATTACK)
	then
		local npcEnemy = AbilityExtensions:GetTargetIfGood(npcBot)

		if (npcEnemy ~= nil)
		then
			if (
				CanCast[abilityNumber](npcEnemy) and GetUnitToUnitDistance(npcBot, npcEnemy) < CastRange + 300 and #allys >= #enemys
				)
			then
				return BOT_ACTION_DESIRE_MODERATE, npcEnemy;
			end
		end
	end

	return BOT_ACTION_DESIRE_NONE, 0;

end

AbilityExtensions:AutoModifyConsiderFunction(npcBot, Consider, AbilitiesReal)
function AbilityUsageThink()

	-- Check if we're already using an ability
	if (npcBot:IsUsingAbility() or npcBot:IsChanneling() or npcBot:IsSilenced())
	then
		return
	end

	ComboMana = GetComboMana()
	AttackRange = npcBot:GetAttackRange()
	ManaPercentage = npcBot:GetMana() / npcBot:GetMaxMana()
	HealthPercentage = npcBot:GetHealth() / npcBot:GetMaxHealth()

	cast = ability_item_usage_generic.ConsiderAbility(AbilitiesReal, Consider)
	---------------------------------debug--------------------------------------------
	if (debugmode == true)
	then
		ability_item_usage_generic.PrintDebugInfo(AbilitiesReal, cast)
	end
	ability_item_usage_generic.UseAbility(AbilitiesReal, cast)
end

function CourierUsageThink()
	ability_item_usage_generic.CourierUsageThink()
end
